Go cannot capture panics in arbitrary goroutines - https://play.golang.org/p/_YUfKreCkeY

main.go

package main

import (
	"fmt"
)

func main() {
	done := make(chan int)
	defer func() {
		<-done
	}()
	defer func() {
		if err := recover(); err != nil {
			fmt.Println("Recovered from:", err)
		}
	}()
	fmt.Println("Hello, playground")
	go func() {
		defer close(done)
		panic("err goroutine")
	}()
	panic("err main")
}